Yamaha TF5 Service Manual page 141

7-2. CPU PORT
The example of a screen of the product test.
The items which cannot be executed have grayed out.
7-2-1. RTC
[Contents]
Inspect the connection between CPU (IC905) and RTC
(IC902).
[Procedure]
<GUI>
Automatic judgment
<Display of inspection log>
In the case of PASS, "PASS: RTC".
In the case of FAIL, "FAIL: RTC".
7-2-2. USB_CONNECT
[Contents]
Inspect the connection between USB connector and CPU
(IC905) by writing a fi le in the USB memory and read it.
[Procedure]
Connect a USB memory to the USB connector in advance.
<GUI>
Automatic judgment
<Display of inspection log>
In the case of PASS, "PASS: USB_CONNECT".
In the case of FAIL, "FAIL: USB_CONNECT".
7-2-3. PNC_CONNECT
[Contents]
Inspect the connection between PNC circuit board and CPU
(IC905).
[Procedure]
<GUI>
Automatic judgment
<Display of inspection log>
In the case of PASS, "PASS: PNC_CONNECT".
In the case of FAIL, "FAIL: PNC_CONNECT".
7-2-4. PNFD_CONNECT
[Contents]
Inspect the connection between PNFD8 circuit board and
CPU (IC905).
[Procedure]
<GUI>
Automatic judgment
<Display of inspection log>
In the case of PASS, "PASS: PNFD_CONNECT".
In the case of FAIL, "FAIL: PNFD_CONNECT".
7-2-5. FSW
[Contents]
Inspect the connection between the foot switch connector
and CPU(IC905).
[Procedure]
Connect a foot switch such as FC4 to the foot switch
connector in advance.
<GUI>
Operate FOOT SWITCH
ABORT
Since popup dialog as shown in the above fi gure is displayed
on the screen, operate the foot switch.
If operation is detected, popup dialog will be closed
automatically.
When popup dialog does not close in spite of having operated
the foot switch, it failed in the inspection.
Push the [ABORT] button to close the popup dialog.
TF5/TF3/TF1
141